package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import util.enviaEmail;

import bean.clienteBean;
import conexao.Conexao;
import dao.clienteDao;

public class removeClienteServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
  
    public removeClienteServlet() {
        super();
    }

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		response.setCharacterEncoding("UTF-8");
		request.setCharacterEncoding("UTF-8");
		
		PrintWriter out = response.getWriter();
		
		Connection conn = null;
		try {
			conn = new Conexao().getConexao();
		} catch (SQLException e) {
			new enviaEmail().enviar(e);
			out.print("falhaConexao");
			return;
		}
		
		clienteBean cliente = new clienteBean();
		cliente.setId(Integer.parseInt(request.getParameter("id")));

		try {

			new clienteDao().remover(conn, cliente);
			conn.commit();

		} catch (Exception e) {
			try {
				conn.rollback();
			} catch (Exception ex) {
				new enviaEmail().enviar(ex);
				ex.printStackTrace();
			}
			exclucaoLogica(cliente, request, response);
		} finally {
			try {
				conn.close();
			} catch (Exception ex) {
				new enviaEmail().enviar(ex);
			}
		}
		
	}

	private void exclucaoLogica(clienteBean cliente, HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		
		response.setCharacterEncoding("UTF-8");
		request.setCharacterEncoding("UTF-8");
		
		PrintWriter out = response.getWriter();
		
		Connection conn = null;
		try {
			conn = new Conexao().getConexao();
		} catch (SQLException e) {
			new enviaEmail().enviar(e);
			out.print("falhaConexao");
			return;
		}
		
		try {

			new clienteDao().exclucaoLogica(conn, cliente);
			conn.commit();

		} catch (Exception e) {
			try {
				conn.rollback();
			} catch (Exception ex) {
				new enviaEmail().enviar(ex);
				ex.printStackTrace();
			}
			new enviaEmail().enviar(e);
			throw new RuntimeException(e);
		} finally {
			try {
				conn.close();
			} catch (Exception ex) {
				new enviaEmail().enviar(ex);
			}
		}
		
	}

}
